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三峡库区消落带狗牙根及土壤生态化学计量特征的空间分异及相关性

open access: yesShuitu Baochi Xuebao
目的狗牙根(Cynodon dactylon)是当前三峡库区消落带植物群落的建群种,为研究狗牙根与土壤生态化学计量特征的空间分异格局及关联关系,认识消落带养分循环及物种适应特征。方法通过对三峡消落带(巴南-秭归段)16个断面分布的狗牙根及其覆盖区的土壤进行野外采样,分析植物各器官(根、茎、叶)及土壤中碳、氮、磷质量分数,探究狗牙根及其实生土壤生态化学计量特征的空间分异规律及相互关系。结果1) 消落带土壤具有明显的“贫氮富磷”特征,且养分质量分数及其计量比具有强烈的空间分异,土壤有机碳、全氮、全磷、碳氮比、
许丽雯   +4 more
doaj  

县域尺度下中国人口老龄化的空间格局与区域差异 [PDF]

open access: yes, 2016
KANG Jiangjiang   +9 more
core   +1 more source

[Role and mechanism of Wnt9a in human and mouse chronic wound healing]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Jia YH, Yuan YX, Hu DH, Guan H.
europepmc   +1 more source

[Comparison of effectiveness between endoscopic and microscopic anterior cervical discectomy and fusion]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Huang C   +9 more
europepmc   +1 more source

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